1. The latest updated software version is V01, which is used to replace EWS4. The new version has been precisely programmed to meet your needs. 2. The AK90 key programmer has improved the read and write speed of some EWS. It is safe and effective and is the best key tool to match your vehicle. 3. There is no need to remove the MCU from the circuit board. Just read the data dump directly from the MCU marked with 1D47J, 2D47J, 0D46J and 2L86D. It's easy to do. 4. With the help of software, the key programmer can recognize all EWS and CAS keys. You can change the VIN, mileage, and update, lock or unlock the key. 5. The key programmer can read the key information and program the original chip EML 10030A to make a key. There is no need to remove the chip when programming a new key, but you need to connect the chip socket to the EWS and connect the other interface to the AK90 host.